Chloride Ions Penetration Resistance of Steam-Cured Concrete for Railway Precast Elements

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By use of ASTM C1202, this paper studied the influence of mineral admixtures on the chloride ions penetration resistance of the steam-cured concrete. The experimental results indicated that mineral admixtures improved the permeability properties of high-performance concretes, but at different rates depending on the binder type. FA required a relatively longer time to get its beneficial effect. For each 10%~40% replacement of OPC by FA in a concrete mix, the values of coulomb charge of steam-cured and standard curing concrete reduces by 8%~17% at180 days. When 30% weight of the OPC were replaced by FA and ground blast furnace slag(GBFS), the inclusion of 30% mineral admixtures provided a significant improvement to the chloride ions penetration resistance properties of steam-cured and standard curing concrete at 28 days and 180 days, especially for the combination of 10% FA and 20% GBFS (double adding).

Info:

Periodical:

Advanced Materials Research (Volumes 219-220)

Edited by:

Helen Zhang, Gang Shen and David Jin

Pages:

1419-1422

DOI:

10.4028/www.scientific.net/AMR.219-220.1419

Citation:

Z. M. He et al., "Chloride Ions Penetration Resistance of Steam-Cured Concrete for Railway Precast Elements", Advanced Materials Research, Vols. 219-220, pp. 1419-1422, 2011

Online since:

March 2011

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$35.00

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DOI: 10.1016/s0008-8846(01)00559-2

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